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<h3><span class="mw-headline" id=".7B_.7D"> <code>{</code> <code>} </code> </span></h3>
<ul><li> 在 <a href="class.html" title="cpp/language/class">class/struct</a> 或 <a href="union.html" title="cpp/language/union">union</a> 定义中分隔<a href="class.html#.E6.88.90.E5.91.98.E8.AF.B4.E6.98.8E" title="cpp/language/class">成员说明</a>。
</li><li> 在 <a href="enum.html" title="cpp/language/enum">enum</a> 定义中分隔枚举项列表。
</li><li> 分隔<a href="statements.html#.E5.A4.8D.E5.90.88.E8.AF.AD.E5.8F.A5" title="cpp/language/statements">复合语句</a>。复合语句可能是下列构造的一部分
</li></ul>
<dl><dd><ul><li> <a href="function.html#.E5.87.BD.E6.95.B0.E5.AE.9A.E4.B9.89" title="cpp/language/function">函数定义</a>
</li><li> <a href="try_catch.html" title="cpp/language/try catch">try 块或 catch 子句</a>
</li><li> <a href="function-try-block.html" title="cpp/language/function-try-block">函数 try 块</a>
</li><li> <a href="lambda.html" title="cpp/language/lambda">lambda 表达式</a> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li></ul>
</dd></dl>
<ul><li> 在<a href="initialization.html" title="cpp/language/initialization">初始化</a>中分隔初始化器。<span class="t-rev-inl t-since-cxx11"><span>这种初始化被称为<a href="list_initialization.html" title="cpp/language/list initialization">列表初始化</a>。</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span>
</li><li> 在<a href="namespace.html" title="cpp/language/namespace">命名空间定义</a>中分隔命名空间体。
</li><li> 在<a href="language_linkage.html" title="cpp/language/language linkage">语言链接说明</a>中分隔声明。
</li><li> 在 <a href="constraints.html#requires_.E8.A1.A8.E8.BE.BE.E5.BC.8F" title="cpp/language/constraints">requires 表达式</a>中分隔要求。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li><li> 在<a href="constraints.html#.E5.A4.8D.E5.90.88.E8.A6.81.E6.B1.82" title="cpp/language/constraints">复合要求</a>中分隔表达式。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li><li> 在<a href="modules.html" title="cpp/language/modules">导出声明</a>中分隔声明。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".5B_.5D"> <code>[</code> <code>]</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E4.B8.8B.E6.A0.87.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">下标运算符</a>；<a href="operators.html#.E6.95.B0.E7.BB.84.E4.B8.8B.E6.A0.87.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="br0">[</span><span class="br0">]</span></span></span> 的一部分。
</li><li> <a href="declarations.html" title="cpp/language/declarations">声明</a>或<a href="incomplete_type.html#.E7.B1.BB.E5.9E.8B.E7.9A.84.E5.91.BD.E5.90.8D" title="cpp/language/type">类型标识</a>（例如在 <a href="new.html" title="cpp/language/new">new 表达式</a>中）中<a href="declarations.html#.E5.A3.B0.E6.98.8E.E7.AC.A6" title="cpp/language/declarations">数组声明符</a>的一部分。
</li><li> <a href="../memory/new/operator_new.html" title="cpp/memory/new/operator new">运算符重载（分配函数）</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">new<span class="br0">[</span><span class="br0">]</span></span></span> 运算符的一部分。
</li><li> <a href="delete.html" title="cpp/language/delete">delete 表达式</a>及<a href="../memory/new/operator_delete.html" title="cpp/memory/new/operator delete">运算符重载（解分配函数）</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">delete<span class="br0">[</span><span class="br0">]</span></span></span> 运算符的一部分。
</li><li> 在 <a href="lambda.html" title="cpp/language/lambda">lambda 表达式</a>中分隔<a href="lambda.html#Lambda_.E6.8D.95.E8.8E.B7" title="cpp/language/lambda">捕获</a>。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="attributes.html" title="cpp/language/attributes">属性说明符</a>中分隔属性。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="structured_binding.html" title="cpp/language/structured binding">结构化绑定声明</a>中分隔标识符列表。<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".23"> <code>#</code> </span></h3>
<ul><li> 引入<a href="../preprocessor.html" title="cpp/preprocessor">预处理指令</a>。
</li><li> <a href="../preprocessor/replace.html#.23_.E4.B8.8E_.23.23_.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/preprocessor/replace">字符串化的预处理运算符</a>。
</li></ul>
<h3><span class="mw-headline" id=".23.23"> <code>##</code> </span></h3>
<ul><li> <a href="../preprocessor/replace.html#.23_.E4.B8.8E_.23.23_.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/preprocessor/replace">粘贴记号的预处理运算符</a>。
</li></ul>
<h3><span class="mw-headline" id=".28_.29"> <code>(</code> <code>)</code> </span></h3>
<ul><li> 在表达式中<a href="expressions.html#.E5.88.9D.E7.AD.89.E8.A1.A8.E8.BE.BE.E5.BC.8F" title="cpp/language/expressions">指示分组</a>。
</li><li> <a href="operator_other.html#.E5.86.85.E5.BB.BA.E7.9A.84.E5.87.BD.E6.95.B0.E8.B0.83.E7.94.A8.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator other">函数调用运算符</a>；<a href="operators.html#.E5.87.BD.E6.95.B0.E8.B0.83.E7.94.A8.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="br0">(</span><span class="br0">)</span></span></span> 的一部分。
</li><li> 在<a href="explicit_cast.html" title="cpp/language/explicit cast">函数风格转型</a>中分隔表达式/初始化器。
</li><li> 在 <a href="static_cast.html" title="cpp/language/static cast"><code>static_cast</code></a>、 <a href="const_cast.html" title="cpp/language/const cast"><code>const_cast</code></a>、 <a href="reinterpret_cast.html" title="cpp/language/reinterpret cast"><code>reinterpret_cast</code></a> 或 <a href="dynamic_cast.html" title="cpp/language/dynamic cast"><code>dynamic_cast</code></a> 中分隔表达式。
</li><li> 在 <a href="typeid.html" title="cpp/language/typeid"><code>typeid</code></a>、 <a href="sizeof.html" title="cpp/language/sizeof"><code>sizeof</code></a><span class="t-rev-inl t-since-cxx11"><span>、 <a href="sizeof....html" title="cpp/language/sizeof..."><code>sizeof...</code></a>、 <a href="alignof.html" title="cpp/language/alignof"><code>alignof</code></a> 或 <a href="noexcept.html" title="cpp/language/noexcept"><code>noexcept</code></a></span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span> 表达式中分隔操作数。
</li><li> 在<a href="new.html" title="cpp/language/new">布置 new 表达式</a>中分隔布置实参。
</li><li> 在 <a href="new.html" title="cpp/language/new">new 表达式</a>中可选地分隔类型标识。
</li><li> 在 <a href="new.html" title="cpp/language/new">new 表达式</a>中分隔初始化器。
</li><li> 在 <a href="explicit_cast.html" title="cpp/language/explicit cast">C 风格转型</a>中分隔类型标识。
</li><li> 在<a href="declarations.html" title="cpp/language/declarations">声明</a>或<a href="incomplete_type.html#.E7.B1.BB.E5.9E.8B.E7.9A.84.E5.91.BD.E5.90.8D" title="cpp/language/type">类型标识</a>中指示分组。
</li><li> 在下列构造中分隔形参列表
</li></ul>
<dl><dd><ul><li> <a href="function.html" title="cpp/language/function">函数声明符</a>（在<a href="declarations.html" title="cpp/language/declarations">声明</a>或<a href="incomplete_type.html#.E7.B1.BB.E5.9E.8B.E7.9A.84.E5.91.BD.E5.90.8D" title="cpp/language/type">类型标识</a>）中
</li><li> <a href="lambda.html" title="cpp/language/lambda">lambda 表达式</a> <span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="class_template_argument_deduction.html" title="cpp/language/class template argument deduction">用户定义推导指引</a> <span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> <a href="constraints.html#requires_.E8.A1.A8.E8.BE.BE.E5.BC.8F" title="cpp/language/constraints">requires 表达式</a> <span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
</dd></dl>
<ul><li> 在<a href="direct_initialization.html" title="cpp/language/direct initialization">直接初始化</a>中分隔初始化器。
</li><li> 在 <a href="asm.html" title="cpp/language/asm">asm 声明</a>中分隔字符串字面量。
</li><li> 在<a href="initializer_list.html" title="cpp/language/initializer list" class="mw-redirect">成员初始化器列表</a>中分隔属于基类或成员的初始化器。
</li><li> 在 <a href="if.html" title="cpp/language/if"><code>if</code></a><span class="t-rev-inl t-since-cxx17"><span> （包括 <code>constexpr</code> <code>if</code>）</span> <span><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></span></span>、 <a href="switch.html" title="cpp/language/switch"><code>switch</code></a>、 <a href="while.html" title="cpp/language/while"><code>while</code></a>、 <a href="do.html" title="cpp/language/do"><code>do-while</code></a> 或 <a href="for.html" title="cpp/language/for"><code>for</code></a><span class="t-rev-inl t-since-cxx11"><span>（包括<a href="range-for.html" title="cpp/language/range-for">基于范围的 <code>for</code></a>）</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span>语句中分隔控制子句。
</li><li> 在 <a href="try_catch.html" title="cpp/language/try catch">catch 子句</a>中分隔形参声明。
</li><li> 在<a href="../preprocessor/replace.html#.E4.BB.BF.E5.87.BD.E6.95.B0.E5.AE.8F" title="cpp/preprocessor/replace">仿函数宏定义</a>中分隔宏形参。
</li><li> <code>defined</code><span class="t-rev-inl t-since-cxx17"><span>、 <code>__has_include</code></span> <span><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></span></span><span class="t-rev-inl t-since-cxx20"><span>、 <code>__has_cpp_attribute</code></span> <span><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></span></span> 预处理运算符的一部分。
</li><li> 在 <a href="static_assert.html" title="cpp/language/static assert"><code>static_assert</code></a> 声明中分隔操作数。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在 <a href="decltype.html" title="cpp/language/decltype"><code>decltype</code></a> 说明符、 <a href="noexcept_spec.html" title="cpp/language/noexcept spec"><code>noexcept</code></a> 说明符、 <a href="alignas.html" title="cpp/language/alignas"><code>alignas</code></a> 说明符<span class="t-rev-inl t-since-cxx20"><span>、 <a href="explicit.html" title="cpp/language/explicit">条件性 <code>explicit</code> 说明符</a></span> <span><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></span></span> 中分隔操作数。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="attributes.html" title="cpp/language/attributes">属性</a>中分隔属性实参。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="decltype.html" title="cpp/language/decltype"><code>decltype(auto)</code></a> 说明符的一部分。<span class="t-mark-rev t-since-cxx14">(C++14 起)</span>
</li><li> 分隔<a href="fold.html" title="cpp/language/fold">折叠表达式</a>。<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> 变参数宏定义中 <a href="../preprocessor/replace.html" title="cpp/preprocessor/replace"><tt>__VA_OPT__</tt></a> 替换的一部分。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".3B"> <code>;</code> </span></h3>
<ul><li> 指示以下构造的末尾
</li></ul>
<dl><dd><ul><li> <a href="statements.html" title="cpp/language/statements">语句</a>（包括 for 语句的初始化语句）
</li><li> <a href="declarations.html" title="cpp/language/declarations">声明</a>或<a href="class.html#.E6.88.90.E5.91.98.E8.AF.B4.E6.98.8E" title="cpp/language/class">成员声明</a>
</li><li> <a href="modules.html" title="cpp/language/modules">模块声明</a>、导入声明、全局模块片段器引入或私有模块片段引入器<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li><li> <a href="constraints.html#requires_.E8.A1.A8.E8.BE.BE.E5.BC.8F" title="cpp/language/constraints">要求</a> <span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
</dd></dl>
<ul><li> 分隔 <a href="for.html" title="cpp/language/for">for 语句</a>的第二与第三子句。
</li></ul>
<h3><span class="mw-headline" id=":"> <code>:</code> </span></h3>
<ul><li> <a href="operator_other.html#.E6.9D.A1.E4.BB.B6.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator other">条件运算符</a>的一部分。
</li><li> <a href="statements.html#.E6.A0.87.E7.AD.BE" title="cpp/language/statements">标签声明</a>的一部分。
</li><li> 在<a href="class.html" title="cpp/language/class">类定义</a>的类头中引入<a href="derived_class.html" title="cpp/language/derived class">基子句</a>。
</li><li> 成员说明中<a href="access.html" title="cpp/language/access">访问说明符</a>的一部分。
</li><li> <a href="bitfield.html" title="cpp/language/bitfield" class="mw-redirect">位域成员声明</a>中引入宽度。
</li><li> <a href="initializer_list.html" title="cpp/language/constructor">构造函数</a>定义中引入成员初始化器列表。
</li><li> <a href="range-for.html" title="cpp/language/range-for">基于范围的 for</a> 语句中分隔范围声明与范围初始化器。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 引入<a href="enum.html" title="cpp/language/enum">枚举基</a>，它指定枚举的底层类型。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="attributes.html" title="cpp/language/attributes">属性说明符</a>中分隔属性 using 前缀与属性列表。<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> 在<a href="modules.html" title="cpp/language/modules">模块声明</a>或模块划分的导入声明中引入模块划分名。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li><li> 私有模块片段引入器（<span class="t-c"><span class="mw-geshi cpp source-cpp">module <span class="sy4">:</span><span class="kw1">private</span><span class="sy4">;</span></span></span>）的一部分。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
<h3><span class="mw-headline" id="..."> <code>...</code> </span></h3>
<ul><li> 函数声明符<span class="t-rev-inl t-since-cxx11"><span>或 lambda 表达式</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span><span class="t-rev-inl t-since-cxx17"><span>或用户定义推导指引</span> <span><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></span></span>中<a href="function.html#.E5.BD.A2.E5.8F.82.E5.88.97.E8.A1.A8" title="cpp/language/function">形参列表</a>的一部分，标识<a href="variadic_arguments.html" title="cpp/language/variadic arguments">变参数函数</a>.
</li><li> 在 <a href="try_catch.html" title="cpp/language/try catch">catch 子句</a>中标识万应处理。
</li><li> 在<a href="../preprocessor/replace.html" title="cpp/preprocessor/replace">宏定义</a>中标识变参数宏。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 指示<a href="parameter_pack.html" title="cpp/language/parameter pack">包</a>声明与展开。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".3F"> <code>?</code> </span></h3>
<ul><li> <a href="operator_other.html#.E6.9D.A1.E4.BB.B6.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator other">条件运算符</a>的一部分。
</li></ul>
<h3><span class="mw-headline" id="::"> <code>::</code> </span></h3>
<ul><li> 下列构造中的作用域解析运算符
</li></ul>
<dl><dd><ul><li> <a href="qualified_lookup.html" title="cpp/language/qualified lookup">有限定名</a>
</li><li> <a href="pointer.html#.E6.88.90.E5.91.98.E6.8C.87.E9.92.88" title="cpp/language/pointer">成员指针声明</a>
</li><li> <a href="new.html" title="cpp/language/new">new</a> 或 <a href="delete.html" title="cpp/language/delete">delete</a> 表达式，指示仅查找全局分配或解分配函数
</li></ul>
</dd></dl>
<ul><li> 在<a href="attributes.html" title="cpp/language/attributes">属性</a>中指示属性作用域。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="namespace.html" title="cpp/language/namespace">嵌套命名空间定义</a>的一部分。<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li></ul>
<h3><span class="mw-headline" id="."> <code>.</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E6.88.90.E5.91.98.E8.AE.BF.E9.97.AE.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">成员访问运算符</a>。
</li><li> 在<a href="aggregate_initialization.html" title="cpp/language/aggregate initialization">聚合初始化</a>中引入指派符。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li><li> <a href="modules.html" title="cpp/language/modules">模块名或模块划分名</a>的一部分。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
<h3><span class="mw-headline" id="..2A"> <code>.*</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E6.88.90.E5.91.98.E6.8C.87.E9.92.88.E8.AE.BF.E9.97.AE.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">成员指针访问运算符</a>。
</li></ul>
<h3><span class="mw-headline" id="-.3E"> <code>-&gt;</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E6.88.90.E5.91.98.E8.AE.BF.E9.97.AE.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">成员访问运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">-</span><span class="sy1">&gt;</span></span></span> 的一部分。
</li><li> 在<a href="function.html" title="cpp/language/function">函数声明符</a>或 <a href="lambda.html" title="cpp/language/lambda">lambda 表达式</a>中引入尾随返回类型。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="class_template_argument_deduction.html" title="cpp/language/class template argument deduction">用户定义推导指引</a>中引入结果类型。<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> 在<a href="constraints.html#.E5.A4.8D.E5.90.88.E8.A6.81.E6.B1.82" title="cpp/language/constraints">复合要求</a>中引入返回类型要求。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
<h3><span class="mw-headline" id="-.3E.2A"> <code>-&gt;*</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E6.88.90.E5.91.98.E6.8C.87.E9.92.88.E8.AE.BF.E9.97.AE.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">成员指针访问运算符</a>；<a href="operators.html#.E7.BD.95.E6.9C.89.E9.87.8D.E8.BD.BD.E7.9A.84.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">-</span><span class="sy1">&gt;</span><span class="sy2">*</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".7E"> <code>~</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E9.80.90.E4.BD.8D.E9.80.BB.E8.BE.91.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">一元补运算符（又称逐位非运算符）</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator~</span></span> 的一部分。
</li><li> 指名<a href="destructor.html" title="cpp/language/destructor">析构函数</a>或伪析构函数的标识符的一部分。
</li></ul>
<h3><span class="mw-headline" id=".21"> <code>!</code> </span></h3>
<ul><li> <a href="operator_logical.html" title="cpp/language/operator logical">逻辑非运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">!</span></span></span> 的一部分。
</li><li> <a href="if.html#consteval_if" title="cpp/language/if">consteval <code>if</code> 语句的反向变体</a>的一部分。<span class="t-mark-rev t-since-cxx23">(C++23 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".2B"> <code>+</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E4.B8.80.E5.85.83.E7.AE.97.E6.9C.AF.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">一元加运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">+</span></span></span> 的一部分。
</li><li> <a href="operator_arithmetic.html#.E5.8A.A0.E6.80.A7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">二元加运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">+</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id="-"> <code>-</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E4.B8.80.E5.85.83.E7.AE.97.E6.9C.AF.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">一元减运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">-</span></span></span> 的一部分。
</li><li> <a href="operator_arithmetic.html#.E5.8A.A0.E6.80.A7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">二元减运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">-</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".2A"> <code>*</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E9.97.B4.E6.8E.A5.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">间接运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">*</span></span></span> 的一部分。
</li><li> <a href="operator_arithmetic.html#.E4.B9.98.E6.80.A7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">乘运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">*</span></span></span> 的一部分。
</li><li> <a href="declarations.html#.E5.A3.B0.E6.98.8E.E7.AC.A6" title="cpp/language/declarations">声明符</a>中或<a href="incomplete_type.html#.E7.B1.BB.E5.9E.8B.E7.9A.84.E5.91.BD.E5.90.8D" title="cpp/language/type">类型标识</a>中的指针运算符或成员指针运算符
</li><li> <a href="lambda.html#Lambda_.E6.8D.95.E8.8E.B7" title="cpp/language/lambda">Lambda 捕获</a>列表中 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span> 的一部分，以按复制捕获当前对象。<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".2F"> <code>/</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E4.B9.98.E6.80.A7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">除运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">/</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".25"> <code>%</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E4.B9.98.E6.80.A7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">模运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">%</span></span></span> 的一部分.
</li></ul>
<h3><span class="mw-headline" id=".5E"> <code>^</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E9.80.90.E4.BD.8D.E9.80.BB.E8.BE.91.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">逐位异或运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">^</span></span></span> 。
</li></ul>
<h3><span class="mw-headline" id=".26"> <code>&amp;</code> </span></h3>
<ul><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E5.8F.96.E5.9C.B0.E5.9D.80.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">取地址运算符</a>；<a href="operators.html#.E7.BD.95.E6.9C.89.E9.87.8D.E8.BD.BD.E7.9A.84.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">&amp;</span></span></span> 的一部分。
</li><li> <a href="operator_arithmetic.html#.E9.80.90.E4.BD.8D.E9.80.BB.E8.BE.91.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">逐位与运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">&amp;</span></span></span> 的一部分。
</li><li> <a href="declarations.html#.E5.A3.B0.E6.98.8E.E7.AC.A6" title="cpp/language/declarations">声明符</a>中或<a href="incomplete_type.html#.E7.B1.BB.E5.9E.8B.E7.9A.84.E5.91.BD.E5.90.8D" title="cpp/language/type">类型标识</a>中的左值引用运算符。
</li><li> 在 <a href="lambda.html#Lambda_.E6.8D.95.E8.8E.B7" title="cpp/language/lambda">lambda 捕获</a>中指示按引用捕获。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="member_functions.html" title="cpp/language/member functions">成员函数声明</a>中的<a href="member_functions.html#.E5.BC.95.E7.94.A8.E9.99.90.E5.AE.9A.E7.9A.84.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0" title="cpp/language/member functions">引用限定符</a>。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".7C"> <code>|</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E9.80.90.E4.BD.8D.E9.80.BB.E8.BE.91.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">逐位或运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">|</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3D"> <code>=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">简单赋值运算符</a>；<a href="operators.html#.E8.B5.8B.E5.80.BC.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">=</span></span></span> 的一部分，它可能是特殊成员函数（<a href="copy_assignment.html" title="cpp/language/copy assignment">复制赋值运算符</a><span class="t-rev-inl t-since-cxx11"><span>或<a href="move_assignment.html" title="cpp/language/move assignment">移动赋值运算符</a></span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span>）。
</li><li> 在<a href="initialization.html" title="cpp/language/initialization">初始化</a>中指示<a href="copy_initialization.html" title="cpp/language/copy initialization">复制初始化</a><span class="t-rev-inl t-since-cxx11"><span>或<a href="list_initialization.html" title="cpp/language/list initialization">复制列表初始化</a></span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span>。
</li><li> 在<a href="function.html" title="cpp/language/function">函数声明</a>中引入<a href="default_arguments.html" title="cpp/language/default arguments">默认实参</a>。
</li><li> 在<a href="template_parameters.html" title="cpp/language/template parameters">模板形参列表</a>中引入<a href="template_parameters.html#.E9.BB.98.E8.AE.A4.E6.A8.A1.E6.9D.BF.E5.AE.9E.E5.8F.82" title="cpp/language/template parameters">默认模板实参</a>。
</li><li> 在<a href="namespace_alias.html" title="cpp/language/namespace alias">命名空间别名定义</a>中分隔别名与别名指代的命名空间。
</li><li> 在<a href="enum.html" title="cpp/language/enum">枚举定义</a>中引入枚举项的值。
</li><li> <a href="abstract_class.html" title="cpp/language/abstract class">纯虚函数声明</a>中纯说明符的一部分。
</li><li> <a href="lambda.html#Lambda_.E6.8D.95.E8.8E.B7" title="cpp/language/lambda">lambda 捕获</a>中的捕获预置符，指示按复制捕获。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="function.html#.E5.87.BD.E6.95.B0.E5.AE.9A.E4.B9.89" title="cpp/language/function">函数定义</a>中的预置定义（<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy1">=</span><span class="kw1">default</span><span class="sy4">;</span></span></span>）或被删除定义（<span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy1">=</span>delete<span class="sy4">;</span></span></span>）。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="type_alias.html" title="cpp/language/type alias">类型别名声明</a>中分隔别名与别名指代的类型。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> 在<a href="constraints.html" title="cpp/language/constraints">概念定义</a>中分隔概念名与约束表达式。<span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".2B.3D"> <code>+=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">+</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id="-.3D"> <code>-=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">-</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".2A.3D"> <code>*=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">*</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".2F.3D"> <code>/=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">/</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".25.3D"> <code>%=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">%</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".5E.3D"> <code>^=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">^</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".26.3D"> <code>&amp;=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">&amp;</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".7C.3D"> <code>|=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">|</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3D.3D"> <code>==</code> </span></h3>
<ul><li> <a href="operator_comparison.html" title="cpp/language/operator comparison">相等运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">==</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".21.3D"> <code>!=</code> </span></h3>
<ul><li> <a href="operator_comparison.html" title="cpp/language/operator comparison">不相等运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">!</span><span class="sy1">=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3C"> <code>&lt;</code> </span></h3>
<ul><li> <a href="operator_comparison.html" title="cpp/language/operator comparison">小于运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&lt;</span></span></span> 的一部分。
</li><li> 在 <a href="static_cast.html" title="cpp/language/static cast"><code>static_cast</code></a>、 <a href="const_cast.html" title="cpp/language/const cast"><code>const_cast</code></a>、 <a href="reinterpret_cast.html" title="cpp/language/reinterpret cast"><code>reinterpret_cast</code></a> 或 <a href="dynamic_cast.html" title="cpp/language/dynamic cast"><code>dynamic_cast</code></a> 中引入类型标识。
</li><li> 引入<a href="template_parameters.html#.E6.A8.A1.E6.9D.BF.E5.AE.9E.E5.8F.82" title="cpp/language/template parameters">模板实参列表</a>。
</li><li> 在以下构造中引入<a href="template_parameters.html" title="cpp/language/template parameters">模板形参列表</a>
</li></ul>
<dl><dd><ul><li> <a href="templates.html" title="cpp/language/templates">模板声明</a>
</li><li> <a href="partial_specialization.html" title="cpp/language/partial specialization">部分特化</a>
</li><li> <a href="lambda.html" title="cpp/language/lambda">lambda 表达式</a><span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
</dd></dl>
<ul><li> <a href="template_specialization.html" title="cpp/language/template specialization">模板特化声明</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;&gt;</span></span></span> 的一部分。
</li><li> 指示下列构造中的头文件名
</li></ul>
<dl><dd><ul><li> <a href="../preprocessor/include.html" title="cpp/preprocessor/include"><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="co2">#include</span></span></span> 指令</a>
</li><li> <a href="../preprocessor/include.html" title="cpp/preprocessor/include"><span class="t-c"><span class="mw-geshi cpp source-cpp">__has_include</span></span> 预处理表达式</a><span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> <a href="modules.html" title="cpp/language/modules"><span class="t-c"><span class="mw-geshi cpp source-cpp">import</span></span> 声明</a><span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
</dd></dl>
<h3><span class="mw-headline" id=".3E"> <code>&gt;</code> </span></h3>
<ul><li> <a href="operator_comparison.html" title="cpp/language/operator comparison">大于运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&gt;</span></span></span> 的一部分。
</li><li> 在 <a href="static_cast.html" title="cpp/language/static cast"><code>static_cast</code></a>、 <a href="const_cast.html" title="cpp/language/const cast"><code>const_cast</code></a>、 <a href="reinterpret_cast.html" title="cpp/language/reinterpret cast"><code>reinterpret_cast</code></a> 或 <a href="dynamic_cast.html" title="cpp/language/dynamic cast"><code>dynamic_cast</code></a> 中指示类型标识的末尾。
</li><li> 指示<a href="template_parameters.html#.E6.A8.A1.E6.9D.BF.E5.AE.9E.E5.8F.82" title="cpp/language/template parameters">模板实参列表</a>的末尾。
</li><li> 在以下构造中指示<a href="template_parameters.html" title="cpp/language/template parameters">模板形参列表</a>的末尾
</li></ul>
<dl><dd><ul><li> <a href="templates.html" title="cpp/language/templates">模板声明</a>
</li><li> <a href="partial_specialization.html" title="cpp/language/partial specialization">部分特化</a>
</li><li> <a href="lambda.html" title="cpp/language/lambda">lambda 表达式</a><span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
</dd></dl>
<ul><li> <a href="template_specialization.html" title="cpp/language/template specialization">模板特化声明</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;&gt;</span></span></span> 的一部分。
</li><li> 指示下列构造中头文件名的末尾
</li></ul>
<dl><dd><ul><li> <a href="../preprocessor/include.html" title="cpp/preprocessor/include"><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="co2">#include</span></span></span> 指令</a>
</li><li> <a href="../preprocessor/include.html" title="cpp/preprocessor/include"><span class="t-c"><span class="mw-geshi cpp source-cpp">__has_include</span></span> 预处理表达式</a><span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> <a href="modules.html" title="cpp/language/modules"><span class="t-c"><span class="mw-geshi cpp source-cpp">import</span></span> 声明</a><span class="t-mark-rev t-since-cxx20">(C++20 起)</span>
</li></ul>
</dd></dl>
<h3><span class="mw-headline" id=".3C.3D"> <code>&lt;=</code> </span></h3>
<ul><li> <a href="operator_comparison.html" title="cpp/language/operator comparison">小于或等于运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&lt;=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3E.3D"> <code>&gt;=</code> </span></h3>
<ul><li> <a href="operator_comparison.html" title="cpp/language/operator comparison">大于或等于运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&gt;=</span></span></span> 的一部分。
</li></ul>
<p><br>
</p>
<h3><span class="mw-headline" id=".3C.3D.3E_.28C.2B.2B20_.E8.B5.B7.29"> <code>&lt;=&gt;</code> <span class="t-mark-rev t-since-cxx20">(C++20 起)</span> </span></h3>
<ul><li> <a href="operator_comparison.html#.E4.B8.89.E8.B7.AF.E6.AF.94.E8.BE.83" title="cpp/language/operator comparison">三路比较（飞船）运算符</a>；<a href="operators.html#.E6.AF.94.E8.BE.83.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&lt;=&gt;</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".26.26"> <code>&amp;&amp;</code> </span></h3>
<ul><li> <a href="operator_logical.html" title="cpp/language/operator logical">逻辑与运算符</a>；<a href="operators.html#.E7.BD.95.E6.9C.89.E9.87.8D.E8.BD.BD.E7.9A.84.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">&amp;&amp;</span></span></span> 的一部分。
</li><li> <a href="declarations.html#.E5.A3.B0.E6.98.8E.E7.AC.A6" title="cpp/language/declarations">声明符</a>中或<a href="incomplete_type.html#.E7.B1.BB.E5.9E.8B.E7.9A.84.E5.91.BD.E5.90.8D" title="cpp/language/type">类型标识</a>中的右值引用运算符。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="member_functions.html" title="cpp/language/member functions">成员函数声明</a>中的<a href="member_functions.html#.E5.BC.95.E7.94.A8.E9.99.90.E5.AE.9A.E7.9A.84.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0" title="cpp/language/member functions">引用限定符</a>。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".7C.7C"> <code>||</code> </span></h3>
<ul><li> <a href="operator_logical.html" title="cpp/language/operator logical">逻辑或运算符</a>；<a href="operators.html#.E7.BD.95.E6.9C.89.E9.87.8D.E8.BD.BD.E7.9A.84.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">||</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3C.3C"> <code>&lt;&lt;</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E7.A7.BB.E4.BD.8D.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">移位运算符</a>；运算符重载（<a href="operators.html#.E9.80.90.E4.BD.8D.E7.AE.97.E6.9C.AF.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">诸位运算符</a>或<a href="operators.html#.E6.B5.81.E7.9A.84.E6.8F.90.E5.8F.96.E4.B8.8E.E6.8F.92.E5.85.A5" title="cpp/language/operators">流插入运算符</a>）中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&lt;&lt;</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3E.3E"> <code>&gt;&gt;</code> </span></h3>
<ul><li> <a href="operator_arithmetic.html#.E7.A7.BB.E4.BD.8D.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator arithmetic">移位运算符</a>；运算符重载（<a href="operators.html#.E9.80.90.E4.BD.8D.E7.AE.97.E6.9C.AF.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">诸位运算符</a>或<a href="operators.html#.E6.B5.81.E7.9A.84.E6.8F.90.E5.8F.96.E4.B8.8E.E6.8F.92.E5.85.A5" title="cpp/language/operators">流提取运算符</a>）中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&gt;&gt;</span></span></span> 的一部分。
</li><li> 在 <a href="static_cast.html" title="cpp/language/static cast"><code>static_cast</code></a>、 <a href="const_cast.html" title="cpp/language/const cast"><code>const_cast</code></a>、 <a href="reinterpret_cast.html" title="cpp/language/reinterpret cast"><code>reinterpret_cast</code></a> 或 <a href="dynamic_cast.html" title="cpp/language/dynamic cast"><code>dynamic_cast</code></a>、<a href="template_parameters.html#.E6.A8.A1.E6.9D.BF.E5.AE.9E.E5.8F.82" title="cpp/language/template parameters">模板实参列表</a>或<a href="template_parameters.html" title="cpp/language/template parameters">模板形参列表</a>中能被重新分析成两个 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy1">&gt;</span></span></span> 。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".3C.3C.3D"> <code>&lt;&lt;=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&lt;&lt;=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".3E.3E.3D"> <code>&gt;&gt;=</code> </span></h3>
<ul><li> <a href="operator_assignment.html" title="cpp/language/operator assignment">复合赋值运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">&gt;&gt;=</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".2B.2B"> <code>++</code> </span></h3>
<ul><li> <a href="operator_incdec.html" title="cpp/language/operator incdec">自增运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">++</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id="--"> <code>--</code> </span></h3>
<ul><li> <a href="operator_incdec.html" title="cpp/language/operator incdec">自减运算符</a>；<a href="operators.html" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">--</span></span></span> 的一部分。
</li></ul>
<h3><span class="mw-headline" id=".2C"> <code>,</code> </span></h3>
<ul><li> <a href="operator_other.html#.E5.86.85.E5.BB.BA.E7.9A.84.E9.80.97.E5.8F.B7.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator other">逗号运算符</a>；<a href="operators.html#.E7.BD.95.E6.9C.89.E9.87.8D.E8.BD.BD.E7.9A.84.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operators">运算符重载</a>中 <span class="t-c"><span class="mw-geshi cpp source-cpp">operator,</span></span> 的一部分。
</li><li> 下列构造中的列表分隔符
</li></ul>
<dl><dd><ul><li> <a href="declarations.html" title="cpp/language/declarations">声明</a>中的声明符列表
</li><li> <a href="initialization.html" title="cpp/language/initialization">初始化</a>中的初始化器列表
</li><li> <a href="new.html" title="cpp/language/new">布置 new</a> 中的布置实参列表
</li><li> <a href="operator_other.html#.E5.87.BD.E6.95.B0.E8.B0.83.E7.94.A8.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator other">函数调用表达式</a>中的实参列表
</li><li> <a href="operator_member_access.html#.E5.86.85.E5.BB.BA.E7.9A.84.E4.B8.8B.E6.A0.87.E8.BF.90.E7.AE.97.E7.AC.A6" title="cpp/language/operator member access">多实参下标表达式</a>中的实参列表<span class="t-mark-rev t-since-cxx23">(C++23 起)</span>
</li><li> <a href="enum.html" title="cpp/language/enum">枚举</a>声明中的枚举项列表
</li><li> <a href="class.html" title="cpp/language/class">类</a>声明中的<a href="derived_class.html" title="cpp/language/derived class">基类</a>列表
</li><li> <a href="initializer_list.html" title="cpp/language/constructor">构造函数</a>定义中的成员初始化器列表
</li><li> <a href="function.html#.E5.BD.A2.E5.8F.82.E5.88.97.E8.A1.A8" title="cpp/language/function">函数形参列表</a>
</li><li> <a href="template_parameters.html" title="cpp/language/template parameters">模板形参列表</a>
</li><li> <a href="template_parameters.html#.E6.A8.A1.E6.9D.BF.E5.AE.9E.E5.8F.82" title="cpp/language/template parameters">模板实参列表</a>
</li><li> <a href="../preprocessor/replace.html" title="cpp/preprocessor/replace">仿函数宏定义</a>中的宏形参列表
</li><li> <a href="lambda.html#Lambda_.E6.8D.95.E8.8E.B7" title="cpp/language/lambda">lambda 捕获</a>列表<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="attributes.html" title="cpp/language/attributes">属性</a>列表<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li><li> <a href="namespace.html#using_.E5.A3.B0.E6.98.8E" title="cpp/language/namespace">using 声明</a> 中的声明符列表<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li><li> <a href="structured_binding.html" title="cpp/language/structured binding">结构化绑定</a>声明中的标识符列表<span class="t-mark-rev t-since-cxx17">(C++17 起)</span>
</li></ul>
</dd></dl>
<ul><li> 在 <a href="static_assert.html" title="cpp/language/static assert"><code>static_assert</code></a> 声明中分隔参数。<span class="t-mark-rev t-since-cxx11">(C++11 起)</span>
</li></ul>
<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">引用</span></h3>
<div class="t-ref-std-c++20">
<ul><li> C++20 标准（ISO/IEC 14882:2020）：
</li></ul>
<dl><dd><ul><li> 5.12 Operators and punctuators [lex.operators]
</li></ul>
</dd></dl>
</div>
<div class="t-ref-std-c++17">
<ul><li> C++17 标准（ISO/IEC 14882:2017）：
</li></ul>
<dl><dd><ul><li> 5.12 Operators and punctuators [lex.operators]
</li></ul>
</dd></dl>
</div>
<div class="t-ref-std-c++14">
<ul><li> C++14 标准（ISO/IEC 14882:2014）：
</li></ul>
<dl><dd><ul><li> 2.13 Operators and punctuators [lex.operators]
</li></ul>
</dd></dl>
</div>
<div class="t-ref-std-c++11">
<ul><li> C++11 标准（ISO/IEC 14882:2011）：
</li></ul>
<dl><dd><ul><li> 2.13 Operators and punctuators [lex.operators]
</li></ul>
</dd></dl>
</div>
<div class="t-ref-std-c++03">
<ul><li> C++03 标准（ISO/IEC 14882:2003）：
</li></ul>
<dl><dd><ul><li> 2.12 Operators and punctuators [lex.operators]
</li></ul>
</dd></dl>
</div>
<div class="t-ref-std-c++98">
<ul><li> C++98 标准（ISO/IEC 14882:1998）：
</li></ul>
<dl><dd><ul><li> 2.12 Operators and punctuators [lex.operators]
</li></ul>
</dd></dl>
</div>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <a href="operator_alternative.html" title="cpp/language/operator alternative">替用表示</a>
</td>
<td> 某些运算符的替用拼写</td></tr>

</table>

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